摘要
对±800 kV特高压直流输电线路的极间距离优化进行了研究,通过分析最大合成电场强度、最大离子流密度、无线电干扰、可听噪声等电磁环境参数随线路极间距离的变化规律,得出目前的±800 kV特高压直流输电线路22 m极间距离具备优化空间,然后基于电磁环境、空气间隙、V串夹角、塔头布置等多方面因素的优化,将极间距离由传统22 m优化至19 m,并论述了极间距离优化的巨大经济效益。
This paper studies optimization of the space between polar conductors. Based on the calculation and analysis of the electromagnetic environment factors, such as the maximum electric field strength, the maximum ion current density, radio interference and audible noise in different spaces between polar conductors, it is found that the current 22 m space of the ±800 kV UHVDC Transmission Line can be reduced. Then, based on optimization of multiple factors such as electro-magnetic environment, air gap and arrangement of V type insulators and conductors on steel towers, the space between polar conductors is reduced from 22 m to 19 m. Substantial economical benefits of the space optimization is also described.
出处
《电网与清洁能源》
2012年第1期49-53,共5页
Power System and Clean Energy
关键词
特高压直流
极间距离
电磁环境
输电线路
UHVDC
space between polar conductors
electromagnetic environment
transmission line
